Super-light, soft HeatGear® fabric provides ultimate coverage without weighing you down. The fabric wicks sweat and dries quickly, making it ideal for intense movement. 4-way stretch technology allows for better movement in every direction. Increased number of laser-cut perforations improves airflow. Elastic waistband with internal drawcord increases comfort. Side pockets and reflective tape increase visibility when running in low light. Odor control technology keeps you fresh.